sha fixes

Author: igoropaniuk

sha2.c

@@ -86,6 +86,9 @@
  * <machine/endian.h> where the appropriate definitions are actually
  * made).
  */
+#if defined(__MINGW32__) || defined(__MINGW64__)
+#include <sys/param.h>
+#endif
 #if !defined(BYTE_ORDER) || (BYTE_ORDER != LITTLE_ENDIAN && BYTE_ORDER != BIG_ENDIAN)
 #error Define BYTE_ORDER to be equal to either LITTLE_ENDIAN or BIG_ENDIAN
 #endif